On Fri, 12 Aug 2022 at 23:20, Aditya Mahajan wrote:
> On Fri, 12 Aug 2022, Mojca Miklavec via ntg-context wrote:
>
> > (a) I don't know how to turn program listing (verbatim code) from xml
> > to (perhaps, vim-based) syntax highlighting (but most importantly, to
> > make sure that line breaks work properly)
>
> Does something like this work:
>
> https://wiki.contextgarden.net/Verbatim_XML
Yes, awesome, this does exactly what I want, thank you very much.
I used the following code:
\usemodule[vim]
% this breaks if directory doesn't exist before
\setupvimtyping[directory=output/]
% it would be potentially useful to have some predefined vimtyping
already present in the module
\definevimtyping
[programlisting]
[syntax=]
\startluacode
function xml.functions.processprogramlisting(t)
buffers.assign("listing","\\startprogramlisting[syntax=cpp]\n"
.. tostring(xml.text(t)) .. "\n\\stopprogramlisting")
context.getbuffer { "listing" }
end
\stopluacode
\startxmlsetups xml:programlisting
\pushcatcodetable
\setcatcodetable\ctxcatcodes
\xmlfunction{#1}{processprogramlisting}
\popcatcodetable
\stopxmlsetups
Now I need to get the "cpp" and "unnumbered" part processed
automatically, so that it will work for any language:
<programlisting language="cpp" linenumbering="unnumbered">// test.cpp:
int main()
{
return 0;
}</programlisting>
which would then be transformed into
\startprogramlisting[syntax=cpp,numbering=no]
int main()
{
return 0;
}
\stopprogramlisting
For some reason the syntax highlighting doesn't work on the full
document, but it works inside the minimal example, so I still need to
investigate what's going on with the full document.
On an unrelated note:
I cannot make \startnarrow[middle=1cm] (or left=... for that matter)
produce any offset on the left. I was playing with the following
code, but the frame refuses to be shifted to the right
\setupvimtyping
[before={
\startnarrow[left=1cm,before={\blank[10pt]}]
\switchtobodyfont[8pt]
\startframed
[align=flushleft,
background=color,
backgroundcolor=gray,
frame=off,
leftframe=on,
rulethickness=2pt,
framecolor=darkgray,
width=local,
offset=1ex]},
after={\stopframed\stopnarrow}]
Hello
\startprogramlisting[syntax=cpp,numbering=yes]
int main()
{
return 0;
}
\stopprogramlisting
Mojca
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